*{margin: 0;padding: 0;}
li{list-style: none;}
img{display: block;}
a{text-decoration: none;}
input,textarea{outline: 0;}
b,strong{font-weight: normal;}
em,i{font-style: normal;}

/* header */
header{
    background-color: #ff4401;
    height: 36px;
    padding: 12px 0;
}
header .content{
    width: 1190px;
    height: 36px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
header h1{
    height: 36px;
    width: 140px;
    font-size: 26px;
    line-height: 36px;
}
header h1 a{
    color: #fff;
    font-weight: 600;
}
header ul{
    margin-left: 50px;
    display: flex;
    flex: 1;
}
header ul li a{
    display: block;
    font-size: 14px;
    padding: 0 25px;
    color: #fff;
}
header ul li a:hover{
    color: #000;
}
header .int{
    display: flex;
}
header .txt{
    width: 248px;
    height: 27px;
    border: 0;
    padding-left: 5px;
    font-size: 12px;
    line-height: 27px;
}
header .btn{
    width: 72px;
    height: 27px;
    background-color: #f5f5f5;
    color: #666;
    border: 0;
    cursor: pointer;
}


.backTop{
    position: fixed;
    top: 300px;
    right: 0;
    border-radius: 8px 0 0 8px;
    padding: 0 5px;
    box-shadow: -5px 0px 20px #ccc;
}
.backTop a{
    display: block;
    text-align: center;
    font-size: 12px;
    color: #000;
    align-items: center;
    margin: 15px 0;
}
.backTop a dl{
    text-align: center;
}
.backTop a dl dd{
    margin-top: 5px;
}
.backTop .backtop{
    /* display: none; */
    text-align: center;
    font-size: 18px;
    color: #000;
    margin: 15px 0;
    cursor: pointer;
    display: none;
}
.backTop .backtop p{
    font-size: 12px;
}
